Machine for making corrugated paper-board



E. M. HAWKINS. I MACHINE FOR MAKING CORRUGATED: PAPER BOARD.

APPLICATION FILED DEC-'28, 1915; 7 1,357,453. Patented Nov. 2,1920.

1 SHEETS-SHEET L E. M. HAWKINS MACHINE FOR MAKING CORRUGATED PAPERBOARD.

APPUCATION FILED DEC-28, 1915. 1,357,453. Patented Nov. 2, 1920.

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MACHINE ron MAKING CORRUGATED PAPER BOARD.

APPLICATION FILED DEC-28,1915.

1,357,453, Patented Nov. 2, 1920.

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APPLICATION FILED DEC. 28, I915- Patented Nov 2 Il SHEETS-SHEET 4- wi-tnew:

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' MACHINE FOR MAKING CORRUGATED PAPER BOARD.

APPLICATION FILED DE I 1,357,453. c 28 Patented Nov. 2,1920.

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E. M. HAWKINS.

MACHINE FOR MAKING CORRUGATED PAPER BOARD.

APPLICATION FILED mac 28. 1915.

1 ,3 57,453. Patented Nov. '2, 1920.

H SHEETS-SHEET 6- E. M. HAWKINS.

MACHINE FOR MAKING CORRUGATED PAPER BOARD.

APPUCATION FILED DEC.26, 1915.

Patentd N0v.-2, 1920.

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v E. M.' HAWKINS.

MACHINE FOR MAKING CORRUGATED PAPER BOARD.

APPLICATION Ell-ED DEC-28, I915- 551, arrow n13 WU neowo:

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MACHINE FOR MAKING CORRUGATED PAPER BOARD. APPL lCATION man usc.2s,1915.

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MACHINE FOR MAKING CORRUGATED PAPER BOARD.

APPLICATION man DEC-28, 1915. 1 Patented NOV. 2, 1920.

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E. M. HAWKINS.

MACHINE FOR MAKING CORRUGATED PAPER BOARD.

APPLICATION FILED 05028, I915- Patented. Nov. 2, 1920.

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Ni/$112M UNH'FE'D STATES P TENT OFFICE.

EDGAR M. HAWKINS, OF ROCHESTER, NEW YORK, ASSIGNOR TO IVI. ID. KNOWLTONCOMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented Nov. 2, 1920.

Application filed. December 28, 1915. Serial No. 69,093.

To all whom it may concern.

Be it known that 1 Enema M. IIA\VKINS, a citizen of the United States,and resident of Rochester, in the county of Monroe and State of NewYork, have invented certain new and useful Improvements in Machines forllaliing Corrugated Paper-Board, of which the following is aspecification.

This invention relates to machines for manufacturing lined corrugatedboard, and has for its object to provide an improved machine, thevarious parts of which are constructed in a. novel manner and cooperateto produce an ellicient and well organized machine.

In its preferred form, the improved machine comprises a pair ofcorrugating rolls which corrugate the filler and transfer it to a rotarydrum having corrugations adapted to receive and hold the corrugationsformed on the filler. l i hile the corrugated filler is being so movedon the surface of the drum, it has applied thereto a coating of adhesiveby means of an adhesive-applying device capable of applying the adhesiveto the ridges of the corrugations. The corrugated filler with itscoating of adhesive then has applied thereto, a liner or facing which isconducted to the periphery of the drum by the mechanism hereinafterdescribed. The corrugated filler then provided with one liner travelswith the drum for a predetermined di? ance and is removed therefrom by atransfer roller in such a manner as to expose the unlined side of thecorrugated tiller. lit double-faced corrugated board, or, in otherwords,corrugated board lined on both sides, is to be made, adhesive isthen applied to the ridges of the corrugations on the unlined side ofthe filler and the other liner is subsequently applied by the mechanismto be hereinafter described. The filler then lined on both sides ispassed under a pressure bed and over a heating bed to firmly unite thelayers and dry the adhesive.

Before the two liners are applied to the corrugated filler, they arepreferably preheated ior the purpose of drying the same and renderingthem more capable of absorbing the adhesive and capable of permittingthe adhesive to dry quickly. Means is also provided for heating thecorrugating rolls and the ahovementioned drum, as will hereinafterappear.

Certain of the pressure and other rolls employed in the machine aremounted for ad ustments to permit the liners to be placed under theproper tension. Furthermore, the mechanism for applying the adhesive tothe two sides of the filler is constructed in a novel manner to permitindependent adjustments of the adhesive-applying rolls or adjustment ofthe set of rolls with respect to the corrugated filler withoutdisturbing the relation between the rolls themselves. Either of theseadjustments is independent of a hereinafter described adjustment of theadhesive pan which may be dropped down away from the adhesive rolls tofacilitate cleaning.

In addition to the above mentioned features, there are other novelfeatures which will appear as the specification proceeds.

The invention is illustrated in its preferred form in the accompanyingdrawings, in which Figure l'is a more or less diagrammatic sideelevation of the machine showing'the arrangement of the various partsthereof and the paths of travel taken by the filler and the two liners;

Fig. 2 is a central longitudinal and ver-- tical section through themachine;

Fig. 8 is a front elevation of the machine; Fig. 4 is a broken verticalsection on an enlarged scale showing the details of the corrugatingrolls and of one of the adhesiveapplying devices; r

Fig. 5 is a transverse vertical section through the pressure bed and theheating or drying bed, the section being taken on line 5-5 of Fig. 2; v

Fig. 6 is a plan view, partly in section, of the pressure bed andheating or drying bed illustrating the mechanism for raising andlowering the pressure bed;

Fig. 7 is a transverse vertical section taken through the device forpreheating the bottom liner;

Fig. 8 is a broken plan view, partly in section, of the device shown inFig. 7

Fig. 9 is a more or less diagrammatic view showing the driving mechanismfor the various power-actuated parts of the machine;

Fig. 10 is a side elevation of the piping system used for conducting theheating medium to the various heated parts of the machine;

Fig. 11 is an endelevation of the structure shown in Fig. 10; r

Fig. 12 is a plan view of the piping s stem illustrated in Figs. 10 and11; and

Fig. 13 illustrates the difference in construction between the teeth ofthe drum and the teeth of the corrugating rolls.

Referring to the drawings, and particularly to Figs. 1 and 2, it will beseen that the filler ,a of straw-board or other s itable material to becorrugated and subsequently lined, is fed from a roll a to thecorrugating rolls, denoted generally by the reference character A. Thefiller is corrugated by means of these rolls and then transferred to acorrugated drunrB, whichcarries the corrugated filler to a transfer rollor drum C by means of which the corrugated filler is removed from thedrum.

Just after the corrugated filler has been gripped by the drum B, theadhesive-ap plying mechanism denoted generally by the referencecharacter D, applies adhesive to the ridges of the corrugations. Thecorrugated board. so coated with the adhesive then has applied thereto,the bottom liner 7) which is conducted to the periphery of the drum Bfrom a supply roll 6 over a preheating device, denoted generally by thereference character 11 The bottom liner so brou ht into contact with theadhesive coated corrugated filler adheres thereto and is carried withthe corrugated filler to the transfer roll C where the filler lined onone side is removed from the drum and reversed,

so that the unlined side of the corrugated filler is exposed to theadhesive-applying mechanism, indicated at F. In this manner, the ridges"of the corrugations on the unlined side of the filler have appliedthereto,

-,a coating of adhesive so that the second or top liner will adherethereto. This second liner 0 is fed from a supply roll 0 over a'preheating device G smnlar to the preheating device E for the bottomliner. A pressure roller H brings the top liner into proper relationwith the adhesive coated corrugations of the filler, thus causing thetop liner to adhere to the corrugated filler.

A set of pull rolls 1, between which the completed material passes,draws the lined corrugated filler over a pressure and drying bed,denoted generally by J.

In Fig. 1, it will be noted that four supply rolls of stock are shown,whereas only three supply rolls are needed at any one time for supplyingthe three layers of stock.

The fourth supply roll, indicated at a is a reserve roll of fillermaterial, from-which the filler stock may be taken when the roll a isexhausted. Due to the fact that the filler is corrugated, substantiallytwice as much material will be needed for the filler,

and hence the provision of the two supply rolls of filler stock.

The above descriptionis for the purpose of giving a broadidea of thegeneral archine.

it for corrugating the filler and from which the filler is transferredto the drum B comprises a pair of corrugating rolls 4 and 5, eachprovided over its entire surface with teeth or corrugations, runninglongitudinally of the'rolls. The teeth of the corrugating roll 4 areindicated at 6 and those on the roll 5 are indicated at 7. The teeth ofthe two rolls mesh so that the filler passed between the rolls iscorrugated in the well known manner.

Before the filler a reaches the corrugating rolls 4. and 5, it passesunder a guide roll shown at 8 in Figs. 1 and 2. After the filler iscorrugated between the rolls 4 and 5,-it' is stripped from the roll 5 bymeans of the stripper fingers 9 and is then guided by means of theguide-shoes 10 and directed toward the periphery of the drum B. Theteeth 6 of the roll a mesh with the teeth on the drum B, so that thecorrugations on the filler board are positioned in the corrugations onthe drum B. The teeth on the drum B cause the corrugated filler to movewith the drum and maintain the spacing of the corrugations in the filleruntil secured by the liner to be adhesively applied thereto.

It is immaterial so far as the broad aspects of the invention areconcerned, just how the corrugating rolls 1- and 5 are mounted, butpreferably both rolls are mounted in movable bearings permitting of ayielding of the rolls relative to, each other and to the drum wherebyany foreign substance or additional thickness ofmaterial may passthrough without injury to the roll teeth or othe parts. This isaccomplished by journaling the rolls in two pairs of brackets, onebracket of each pair being disposed at each side of the machine and theright hand bracket of each pair being shown at 1- and 5 in Fig. 4. Thesebrackets and 5 are respectively pivoted to the frame of the machine at11 and 12, and are held with the rolls in yielding engagement with eachother and with the drum, by means of a coil spring 13 encircling I a.stud '14 passing through a swivel-block 15 on the bracket 5 and pivotedat 16 to the frame of the ma- I The spring 13 reacts at one end againstthe adjusting nuts 16 on the stud 14-, and at its other end againstthebracket 5, and, therefore, as the stud 1a is free to slide in the swivelblock 15, the rolls will be yieldingly held in proper relation to eachother and to the drum as stated. It so desired the inward movement ofthe roll 5 may be positively limited by means of a. nut 17 on the stud14L- between which and the swivel block 15, a sleeve 18 may bepositioned. The extremity of the sleeve 18 adjacent the swivel bloc; 15will then act as a shoulder to limit the inward movement of the bracket5 and the roll The corrugated filler is stripped from the roll a; bymeans of a plurality out stripper fingers 19 (Fig. secured to guideshoes20. The stripper iingers 9 for removing the corrugated filler from theroll 5 and the strippei agers 19 for removing the corrugated tiller fromthe roll l operate in circumferential recesses provided in the rolls 5and l, res )ectively. The two sets of guide-shoes 10 and 20 which carrythe said stripper fingers are respectively mounted on supporting rrosslinuj's l0 and 20 and serve to retain the corrugated filler in thecorrugations oi? the adjacent rolls until the corrugated filler isbrought to the adhesive-applying mechanism 77. These guide-shoes aremounted for transverse movement on their supporting bars as shown inorder to permit of their yielding to any increased thickness of materialpassing through the machine described in relation to the yieldin supportof the corrugating rolls, the same being yieldinoly held to their normalposition by means oLt suitable springs, 10 and 20", interposed betweenthe shoes and their supporting' bars shown.

The mechanism D for applying the adhesive to the corrugated filler, inits preferred form, comprises an adhesive pan or trough, indicated at2].. l t is mounted for raising and lmveringmovements upon brac fc .1which in turn, are secured to the ma' chine 't'r nie. llhis isacromplished by 1}! i h the pan 2L on the brackets 22 by means o t thelinks 2 and 24:. The links 23 are pivoted to the re r part of theadhesive 1 he h t?.8l(8ll 22,'while the links 24;

..=out the axis o a shaft and are heir upper extrei'uities to bracle reddirectly to the adhesive pan.

l ver 2'? secured to the shaft is capable o" ating the same and therebyreel-:i 2. to raise and lower the 2 tllidably mounted upon a casting; inwhich the adhesive-a1 y 29 is ournaled. The casting 23 also 0 hebearings for the adhesive distributing roll ell, out the bearingsslidably mounted. upon the casting and capable of adjustment thereon tovary the distanze h the rolls 29 and This adjustment of ell 31 is aciedby means of at each side i138 machine, the extremity of which i'eadedinto a l'x-oss 33 ot the corresponding bearing 30. The rod 32 passesthrough and is free to turn in an upstanding lug 3d carried by thecasting 28. A shoulder on the rod 32, however, abuts against the outsidesurface of the lug 3st, and, therefore, when the rods 32 are turned,such as by means of the thumb wheels the bearings 30 may be made toslide back and forth upon the cast ing A o 1 spring 36 provided on eachoi? the rots 32 and interposed between the lug 34 and the boss 33 toyieldingly hold the roll 31 in contact with the roll 29. By turning thethumb whe -ls 35, it is obvious that the space between the rolls 29 and31 ma be varied and that in all positions of the roll 31, the latterwill be yieldingly held tovard the roll 29, so as to yield i1 anyforeign matter should passhetween the rolls 29 and This adjustment tovary the space between the rolls 29 and 31 is for the purpose of varyingthe amount of adhesive transmitted to the roll 29 from the roll 31.

lVhen the machine is stopped, it may be desirable to move bot-h rolls 29and 31 away from the drum B without affecting the relation between therolls. This is accomplished by pivoting a link 3*! to the tasting 2S andto a rocker arm 38 capable of oscillating about the axis of a shaft 39.A hand lever l0 also mounted to oscillate about the axis of the shaft 39is capable of actuating the rocker arms 38 to shift the position of thee ng 28 on the bracket 22. When the east- 28 is made to slide upon thebracket 22, ii rolls and 31 move with the casting is they are bothmounted thereon. The 0 rolls 25') and 31 may, therefore, be moved awayruin the drum P without disturbing the adjustment between the rolls. Thedropping; oi the pan by means of the hand lever 2? permits free accessto the rolls and facilitates leaning.

'lhe position of the adhesiveapplying: roll 25 should be surh that itcomes in contact *ith the ridges of the corrugations on the tide-r. Theroll may be definitely lo ated with respect to the drum l3 by insertingone or more washers at the connection between the linlr S? and therocker arm 38. As the linlr 37 passes through a swivel block ll pivotedto the rocker arm 38, the washers may be conveniently inserted betweenthe end of the swivel lock and a shoul le on said link, in dicated atlVhen the handle 10 is in its extreme position to move the casting 28rearunrdly, the presence or absence of ashit; will determine thedistance between the adhesivenpplying roll 29 and the drum ve'l that thet eth 3 on the t iled to a certain extent and less height thin the teethe corrugating rolls 4- and 5. ue ated filler being carried y drum, theteeth of the drum, therefore, do not project all the way into thecorrugations of the filler. The roll 29 is adjusted so that the adhesivewill be applied to the ridges of the corrugations of the filler and,therefore, if the filler does not intervene between the roll 29 and thedrum, the adhesive will not be applied to the teeth of the drum.Furthermore, if any openings or holes occur in the filler, the adhesivewill not be applied through said openings or holes on to the teeth ofthe drum, as the tops of the drum teeth are spaced from the roll 29.

Just below the adhesive-applying roll 29 is positioned a knife-bar 44,which runs transversely of the machine and is supported at itsextremities on the brackets 22. The bar 44 is provided with a pluralityof blades 45 which make line contact with the ridges of the corrugationsin the filler to hold the corrugated filler in the corrugations of thedrum. As the blades 45 make only line contact with the adhesive coatedfiller, they remove substantially no adhesive from the ridges of thefiller corrugations.

Immediately below the knife-bar 44 is located a roll 46 over which thebottom liner passes and by which the liner is brought into contact withthe adhesive coated corrugated filler carried by the drum. As abovestated, the bottom liner is supplied to the roll 46 from a supply roll5. Before reaching the roll 46, ho sever, the bottom liner 5 is causedtopass over the preheating device E. This preheating device E is shownin detail in- Figs. 7 and 8 and comprises a pipe 47 closed atits ends bymeans of the caps 48 screwed upon its extremities. The inclosed drum soformed is mounted upon two standards or pedestals, indicated at 49 and50. Each pedestal is provided with a concaved bearing portion shown at51 in Fig. 7 to receive a hub-like extension on each of the caps 48.These hub-like extensions 52 on the caps are rigidly boltedto thepedestals by means of the yokes 53. Steam is admitted to the interior ofthe heating pipe through an inlet pipe 54 and discharged throughtheoutlet pipe 55 shown in Fig. 10.

The bottom liner: Z) is first carried under a guide-roll 55 and then upover the periphery of the heating pipe. It then passes downwardly undera pressure roll 56 and then upwardly to the roll 46 above mentioned.

The pressure roll 56 is adjustable to place the proper tension on theliner passing over the heating pipe and to vary the distance over whichthe liner passes while in contact with the surface of the heating pipe.This is accomplished by mounting the pressure roll 56 in two arms 57which are secured to a shaft 58 coaxially disposed with respect to theheating pipe and free to turn with respectpthereto. A hand lever 59 alsosecured to the shaft 58 renders it possible" to turn the shaft 58, andhence raise or lower the pressure roll 56. The pressure roll 56 is heldin its adjusted position by means of a latch lever 60 at each end of theheating plpe. with a plurality of notches or recesses 61 adapted toengage a stud or projection 62 carried by the arms 57 in which thepressure roll 56 is mounted. The latch levers 60 are secured to andoscillate about the axis of a shaft 63 and are actuated by means of atreadle 64 also secured to the shaft-63. When the treadle 64 isdepressed, the latch lever 60 is drawn inwardly and permits adj ustmentof the roll 56 by means of the hand lever 59. Theroll 56 is adjusteduntil the studs 62 register with one of the notches 61, and whenpressure is released from the treadle 64, the latchlevers 60 arereturned by means of the coil spring 65 and support the pressure roll inits adjusted position. The spring 65 just mentioned is coaxiallydisposed on a rod 66 which swivels about the axis of the shaft 58. Thespring 65 reacts against a swivel block 67 carried by an arm 68, whichin turn, is secured to the shaft 63.

Each of the latch levers is providedv The spring 65, therefore, tends tohold the v treadle 64 in its raised position and the latch levers 60 intheir operative positions.

When the roll 56 is made to assume one of its lower positions, it isobvious that the extent of the surface contact between the heating pipe47. and the liner is relatively large whereas when the roll 56 is madeto assume its higher positions, the extent of subsurface contact isrelatively small. In this way the heating of the liner, according to itscontained moisture, may be regulated by changing the position of theroll 56.

As above stated, the bottom liner 5 is carried upwardly from thepreheating device E just described, over the roll 46 which brings thebottom liner into contact with the corrugated filler on the surface ofthe drum. A roll 69 aids in bringing the bottom liner into contact withthe corrugated filler and in pressing the liner against the filler. Therolls 46 and 69 are unitarily adjustable toward and away from the drumB, due to their being carried by arms 70 which are pivoted to the lowerframework at 7 0. The levers 70 are oscillated to raise and lower therolls 46 and 69 by means of a link 71 pivoted to a rock. arm 72, whichoscillates about the axis of ashaft73. The rock arm 72 is oscillatedabout the axis of the shaft 73 by means of a hand lever 74 (Fig. A latcharm 75 moves unitarily with the rock arm 72 and coiiperates with aquadrant 76 to lock the parts in their ad justed position; By actuatingthe hand lever 74-, it is obvious that the oscillation of the rock arm72 will cause the link 71 to raise'or lower the rolls 46 and 69.

After leaving the rolls 46 and 69, the corrugated filler new suppliedwith the hottom liner is carried with the drum until the transfer roll Cisreached. The corrugated filler and bottom liner pass around thetransfer roll C with the bottom liner adjacent to the surface of theroll C. The unlined side of the filler is, therefore, exposed in passingaround the transfer roll C, thus giving an opportunity to apply adhesiveto the ridges of the corrugations at the unlined side of the filler.This is done by means of the adhesive-applying mechanism F, which issimilar in all respects to the adhesive-applying mechanism D forapplying adhesive to the opposite side of the filler. The hand leversfor adjusting the rolls toward and away from the transfer roll C and forlowering the adhesive pan are shown at 77 and 7'8 in Fig. 3, which handlevers correspond with the hand levers -:t0 and 27, respectively, of thepreviously described adhesive-applying mechanism.

The top liner 0, in case the filler is to be lined on both sides, isapplied to the corrugated filler as the latter reaches the upper part ofthe transfer roll C. The top liner is conducted to this point from thesupply roll 0, over an idler roll 79, to and under an adjustable tensionroll 80, and from thence over the periphery of the preheating device t,from which it passes under an adjustable pressure roll 81 to the tilleron the transfer roll C. The said preheating device Ii and the tensionroll 80 are substantially the same in construction and function as thepreheating device E and the tension roll 56 about which the lower linerpasses.

The preheating device or drum G is carried by castings 91 which aresupported at one end on the rod 92 and at their opposite ends onbrackets 92 secured to other brackets 93 which serve to support theidler roll 79. is here shown, screws 94 are employed as a means tosecure the outer ends of the castings 91 in connection with the brackets92.

The tension roll 80 is mounted in arms 95 which depend from andoscillate about the axis of a shaft 96 passing throughthe heating drumG. A hand lever 97 (Fig. 3) serves to swing the arms 95 about the shaft96. and hence adjust the position of the roll 80. ii latch pin 95 (Fig.2) on one of the arms 95, engaging the casting 91 in one of a series ofholes 95 therein, serves as a means to hold the roll 80 in adjustedposition.

The pressure roll 81 above referred to, which directs the upper liner onto the filler passing over the transfer roll or drum C, is preferablysupported with itsaxis slightly forward of the axis of the transfer roll0 and suliiciently low to bring the top liner into contact with thefiller before the filler reaches the highest point of the roll C,whereby a better union is effected between the filler and the top liner,since the top liner is applied to the filler while the filler is curvedabout the surface of the roll C. When the filler straightens out, therewill be a slight relative movement between the filler and top liner,which will bring about a more intimate contact between the two andeffect a better union. v

The pressure roll 81 may be supported in any suitable or desired manner.As here showm it is supported in a pair of swinging arms 82 each adaptedto swing about an axis These arms 82 are raised and lowered by means oflinks 84 pivoted at their lower ends to the arms 82 and at their upperends to rock arms 85 adapted to be actuated about the axis of a shaft 86by means of a hand lever 87. The hand lever 87 is provided with a latchdevice 88 (Fig. 8) which controls the insertion of a pin in and theremoval of such pin from the perforations 89 provided in a quadrant 90.By adjusting the position of the hand lever 87, it is obvious that thepressure roll 81 may be swung about the axis 88 and be adjusted withrespect to the transfer roll C whereby to vary the extent of relativemovement between the liner and filler hereinbefore referred to.

The corrugated filler now lined on both sides is caused to pass betweenthe pressure bed and the heating bed, denoted generally by the referencecharacter J in Fig. 1. This part of the machine comprises a hollowcasting 98 (Fig. 2), over which the lined corrugated tiller is drawn bymeans of the pull rolls 99. Steam is admitted to the casting 98 throughthe inlet 100 and discharged through the outlet 101. At the rear of thecasting 98 are located plates 102, over which the lined corrugatedfiller passes before the rolls 99 are reached and under which are placeda plurality of steam coils 103 (Fig. 12). The plates 102 are providedwith openings or perforations 104: to permit the heat of the coils 103to act directly upon the lined corrugated filler. The casting 98 and theplates 102 are supported upon I-beams 105 (Fig. 5), which runlongitudinally of the machine and which are supported at their forwardends upon the main framework of the machine and at their rear ends upona supp orting structure 106.

The pressure bed above referred to is lo cated above the casting 98 andthe plates 102 and comprises an adjustable bed carrying a plurality ofpressure devices, here shown in the form of brushes, which press againstthe lined filler as it passes over the heating bed 98 and the plates10:2. in this manner, the liners are firmlypressed on the corrugatedfiller and the lined filler is brought into intimate contact withtheheating bed and plates. The adjustable pressure bed is shown in Figs.1, 2, 5 and 6 and comprises longitudinal I-beams 107, which are securedto the end cross pieces 108. The under surfaces of the I-beams 107 havesecured thereto, a plurality of short angle irons 109 to which theextremities of transverse brushcarrying bars 110 are secured by means ofthe clips 111. (See Figs. 2 and 5). Each of the brush bars 110 carry apluralityof brushes 112. a

Secured to the first pair of angle pieces 109 is a transverse angle bar113, to which is secured a sheet of canvas or other flexible material114C passing rearwardly under the brushes. The canvas interveningbetween the brushes and the lined filler evenly distributes the pressureof the brushes over the surface of the lined filler.

The pressure bed just described is supported at its four'corners uponstationary threaded uprights 115. Each of these uprights is supportedupon a stationary part 116 of the framework. A sleeve 118 having aninternally threaded portion at its upper end rotates upon each of thethreaded uprights 115. The forward pair of sleeves 118 sup port theextremities of the forward cross member 108 and the rear pair supportthe extremities of the rear cross member 108. This is accomplished byproviding each sleeve at its lower end with a shoulder 119 whichsupports the extremity 120. of the correspondingcross member 108, in amanner clearly shown in Fig. 5.

The four sleeves 118 are each provided at its upper end with a beveledgear 117, and these four gears and attached sleeves (Fig. 6) are rotatedin unison, due to the provision of a cross shaft 121 which rotates thetwo beveled gears 117 and attached sleeves of the rearmost pair and across shaft 122 which likewise rotates the two beveled gears 117 andattached sleeves of the forward pair. Each of the shafts 121 and 122 areprovided at their extremities with beveled pinions 123 meshing with thecorresponding beveled gear 117. The two cross shafts 121 and 122 aredriven from a common connecting shaft 12 1 through the intermediary oftwo sets of meshing beveled gears 125 and 126. When the shaft 12 1 isrotated, it is obvious that all of the beveled gears 117 and attachedsleeves will be rotated to raise and lower the cross members 108 and thepressure bed. The shaft 124 is rotated in either direction from adriving shaft 126, which in turn, is driven from a sprocket 127. Theshaft 126' carries a beveled pinion 128 meshing with two crown gears 129and 130. These gears are loosely mounted upon the shaft 124i and eitherof the same may be operatively connected with said shaft by means of aclutch member 131 operating between the crown gears 129 and 130. Theclutch member 131 is keyed to the shaft 124: and

may frictionally engage either the gear 129 or 130 to operativelyconnect the same with the shaft 124. The position of the clutch member131 is controlled by means of a hand lever 132. When the clutch member131 engages with one of the two crown gears, the pressure bed will beraised and when it engages with the other of the two crown gears, thepressure bed will be lowered.

As will be noted from Fig. 9, the drum B, the transfer roll C and thepressure roll '81 are positively driven from a drive shaft 133 through atrain of gearing. A pinion 131011 the drive shaft drives a reducing gear135. A pinion 136 rotating with the gear 135 meshes with the drum gear137. The drum gear 137 drives the transfer roll C through the gears 138,139 and the gear 1 10 secured to the transfer roll C. The pressure roll81 has its gear 111 driven from the gear 139 through the intermediary ofthe interveninggear 1412. As the gear 112 is coaxially disposed withrespect to the stud 83 about which the pressure roll 81 oscillates, itis obvious that the adjustments of the pressure roll 81 will not throwthe gears 1 -11 and 142 out of mesh.

The gear 138 rotates unitarily with a beveled gear 1 13 which, in turn,drives a beveled gear 1 1 1 secured to a shaft 1 15 running back to thepull rolls 99. The pull rolls 99 are rotated from the shaft115 by thetrain of gearing, denoted generally by the reference character 1 16. r

The two rolls of each adhesive-applying mechanism are rotated from thedrive shaft 133 by means of a chain 1 17 passing over the sprockets 118, 1 19, 150, 127, 151, 152 and The sprockets 151 and 152 areassociated with the upper and lower adhesiveapplying mechanism,respectively. The upper sprocket 151 drives the two adhesive rollsthrough the intermediary of the gears 151 and 155 associated with therolls, and

the lower sprocket 152 drives the two rolls of the loweradhesiveapplying mechanism through the intermediary of the gears 15?)and 157 associated with tee two rolls. The sprocket 127 also driven bymeans of the chain 1&7 serves to raise and lower the pressure bed in themanner above described. The drive shaft 133 is rotated by means of adrive pulley 158 (Fig. 3).

If so desired, clutch mechanism, denoted generally by the referencecharacter 159, may be provided to connect the driving pulley 158 withthe driving shaft and to disconnect it therefrom. This clutch mechanismmay be controlled from a hand lever 160 mounted to oscillate about theaxis of the shaft 73, and having connection with the clutchinechanismbvmeans of the link 162 (see Figs. 2 and If so desired, theadhesive rollers of each adhesive-applying mechanism may be providedwith clutches to disconnect the same from the driving mechanism.

Not only are the preheating devices E and. (-l supplied with steam, butmeans is provided for supplying the interior of the cor-- rugating rollsand the drum with steam. Steam is also supplied to the heating bed andthe heating coils under the pressure bed, as above stated. The steam maybe supplied to all. of these parts by any suitable system of piping, butpreferably that disclosed in Figs. 10 to 12, inclusive, is employed. Itwill be noted from these figures that steam is supplied to thepreheating devices E and. it through pipes 163, 16 i; and 165 (seeparticularly Fig. 10). A branch pipe 166 conducts steam to thecorrugating rolls through pipes 167 and 168. The drain pipe for thepreheating device G is shown at 169 and joins the drain pipe 170 for thepreheating device 1*] at 171. The drain pipes for the corrugating rollsare shown at 172 and 1173 and discharge into the common drain pipe 17 1.Before the steam is supplied to the drum and the heating bed by the pipe166, it is caused to pass through a reducing valve 175 to reduce thepressure of the steam. After the steam passes through the reducing valve175, part of the steam is supplied to the heating bed through the bedinlet pipe 176 and part ofthe steam is delivered to the drum through thedrum supply pipe 177. The drain pipe for the drum is shown at 178 andthe drain pipe for the heating bed is shown at 179. The heating coils103 are supplied by means of a continuation 166 of the oipe 166 and thedrain from said coils is carried through the pipe 1'79, which alsoserves to drain the heating bed. The sys tem may be provided with asmany valves as necessary and pressure gages at various points, asindicated in the drawings.

it has been found in practice that if the corrugations formed on thefiller are of the same size as the teeth on the drum which receive thecorrugations, the corrguated filler in expanding, after beingcorrugated, tends to spring away from the drum. This may be avoided bymaking the corrugations on the filler of less pitch than the teeth onthe receiving drum. By referring to Fig. 13, it will be seen that theteeth on the corrugating rolls may be so constructed with respect to theteeth on the receiving drum that the corrugations formed on the fillerwill be of ess pitch than the pitch of the teeth on the receiving drum.The difference between the pitch of the corrugations on the filler andthe pitch of the teeth on the receiving drum should be such that theexpansion of the corrugated filler board will make the corrugations ofsubstantially the same size as the teeth on the receiving drum. It mayeven be desirable to make the corrugations of the filler sufiicientlysmall with respect to the size of the teeth on the drum to necessitate aslight stretching of the tiller corrugations, in order to make them fitin the corrugations of the drum. There would then be no tendency for thecorrugated filler to spring from the surface of the drum from the timeit is received thereon to the time when it is held on to the surface ofthe drum by the bottom liner.

It will be noted from Fig. 13 that the pitch of the teeth on the drum Bis eater than the pitch of the teeth on the con ugating rolls and 5. Thecorrugations on the filler will, therefore, be of less pitch than thepitch of the teeth on the drum l3, and when they expand will be of justsufficient size to be accommodated by the teeth of the drum or will haveto be slightly stretched in order to be accommodatedby the drum teeth.in either instance, the filler will not have a tendencyto spring fromthe surface of the drum, as would be the case if the filler corrugationswere the same size or pitch as the drum teeth and allowed to expand to agreater pitch.

The operation of the entire machine will be largely obvious from theforegoing description. Assuming that the three webs of material, thatis, the straw-board or filler and the paper liners, have been properlythreaded through the machine and that the machine ha been set inoperation, the various positively driven parts of the machine will feedthe webs of material through the machine and the completed product willbe discharged by the pull rolls 99 which draw the lined. corrugatedfiller over the heating bed and under the pressure bed. The filler a inpassing between the corrugating rolls 1 and 5 is corrugated and heated,and then the corrugated filler is transferred to the surface of thedrum. The corrugations of the filler fit in the corrugations of the drumand the filler is, therefore, carried around with the drum to thetransfer roll The adhesive applied to the ridges of the corrugations ofthe filler by the adhesive-applying mechanism D causes the bottom liner5, conducted to the drum by the mechanism above described, to adhere tothe filler. As the filler and liner are both heated, they aresubstantially dry and in good condition to receive the adhesive. Thebottom liner as above stated, is preheated by being passed over thepreheating device E and is kept under proper tension while being passedover said device by the pressure roll 56. The various rolls over whichthe bottom liner passes keeps the liner under proper tension and drawsthe same against the corrugated filler on the surface of the drum. Whenthe filler and bottom liner are re moved from the drum by the transferroll C, adhesive is applied to the other side of the filler by theadhesiveapplying mechanism F in the manner above described, if thefiller is to receive a second liner, but if it is desired to makesingle-faced board, the adhesive-applying mechanism F may be renderedinoperative by withdrawing the adhesive rolls from operative relationwith respect to the transfer roll C. The top liner 0, in the event thatone is used, is preheated by the preheating device G and then conductedto the transfer roll G and brought in contact with the filler by meansof the adjustable pressure roll 81. The corrugated filler then lined onboth sides is drawn under the pressure bed and over the heating bed. Thepressure exerted upon the material as it passes over the heating bed maybe regulated by means of the raising and lowering mechanism abovedescribed, which is thrown into and out of operation by the hand lever132.

As above stated, the adjustment of the roll 81 permits the top liner tobe applied to the filler while the filler is on the curved surface ofthe roll C, and, therefore, when the filler straightens out, a wipingaction will take place between the filler and the top liner to efiect abetter union between the two.

The independent adjustments of the rolls of each adhesive-applyingmechanism and the combined adjustment of the two rolls of eachmechanism, together with the independent adjustment of the adhesive pan,

permits the two rolls of each mechanism to be quickly withdrawn from thedrum witlout aifecting the adjustment between the two rolls of each pairand permits the pan to be dropped away from the rolls to facilitateinspection and cleaning. Furthermore, the means for adjusting theadhesive-distributing roll of each mechanism with respect to theadhesive-applying roll permits the proper amount of adhesive to beapplied to the corrugated filler. Any foreign matter passing between therolls will cause the distributing roll to yield, but it will returntoits predetermined adjusted position with respect to theadhesive-applying roll. Nhen both rolls are withdrawn from theiroperative position and returned, they will assume the same initialposition, as the movement of the rolls toward the drum is positivelylimited and regulable. ."Vhen the rolls are pcsitioned in their proper rlation with respect to the drum, the independentadj ustment of thedistributing roll does not affect the position of the adhesive-applying.roll with re spect to the drum.

It will. be understood that the preheating of the liners may bedispensed with if they are suiiiciently dry, as they will then readilyabsorb the adhesive and the heat of the drum and heating bed may besufficient to dry and set the adhesive.

Although the machine has been described in its preferred form, it isobvious that numerous modifications and changes may be made in thedetails of construction, without departing from the spirit or scope ofthe invention, as defined in the accompanying claims.

What I claim is 1. In a corrugating machine, the combination of acorrugated drum, toothed corrugating rolls, means to transfer materialcorrugated by said rolls to the drum, the teeth on said corrugatingrolls being of less circumferential pitch than the teeth on said drum,and means to operate upon the corrugations of the material during itspassage about the drum.

2. In a corrugating machine, the combina tion of toothed corrugatingmeans, ccrrugated meansto receive the material corrugated bysaidcorrugating means, the teeth on said corrugating means being of lesspitch than the teeth on said corrugated receiving means, and means foroperating upon the corrugations of said material dur ing its passageover the receiving means.

3. In a corrugating' machine, the combination of a groovedreceivingmember adapted to receive corrugated material, and corrugatingmeans adapted to corrugate material with corrugations which are smallerthan the size of the grooves in said receiving means, and means foroperating upon the corrugations of said material during its passage overthe receiving means.

9i. In machine of the k nd described, the combination with means forcorrugating material, of adhesive applying mechanism, means forreceiving the corrugated material and for holding the same in properrelation with the adhesive applying mechanism, said adhesive applyingmechanism including); an applying roll and a distributing roll, means toadjust the distributinp' roll toward and away from the applying roll,means to positively limit the movement of the distributing roll towardthe applying roll, and means to yielding'ly hold the distributing rollin the extreme position determined by said limiting means.

5. In a machine of the kind described, the combination with means forcorrugating material, an adhesive applying; mechanism, means for holdingthe corrugated material to be treated in proper relation with theadhesive applying mechanism, said adhesive applying; mechanism includingan applying roll and a distributing roll, means to adjust thedistributing roll toward and away from the adhesive applying roll,adjustable means to determine the limit of the movement-of thedistributing roll toward the adh sive roll, means to yieldingly hold thedistributing roll in the extreme position determined by said limitingmeans, and means operable independent of the adjustment of thedistributing roll to move both rolls unitarily away from said materialholding means.

6. In a machine of the kind described, the combination of anadhesive-applying mechanism, a drum for moving the material to be coatedwith adhesive in proper relation with said mechanism, a roll positionedbelow said adhesive-applying mechanism for bringing a liner into contactwith the adhesive-coated material on said drum, means for adjusting theparts of said adhesive-applying mechanism toward and away from saiddrum, and independent means for adjusting the position of said rolltoward and'away from said drum.

7. The combination with mechanism for lining a web of paper and thelike, of a heating bed, a pressure bed between which and the heating bedthe lined web passes, and a plurality of transversely arranged rows ofpressure devices carried by said pressure bed, for the purposedescribed.

8. The combination with mechanism for lining a web of paper and thelike, of a heating bed, a pressure bed between which and the heating bedthe lined web passes, said pressure bed comprising a plurality oftransversely arranged rows of pressure devices and being adjustable withrespect to the heating bed, and a plurality of pressure devices carriedby said pressure bed, for the purpose described.

Signed at Rochester, in the county of Monroe and State of New York, this22d day of December, A. D. 1915.

EDGAR M. HAWKINS.

Witnesses:

F. A. COLLINS, J12, THOS. D. PATTON.

